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Vulnerability Details : CVE-2012-4557

The mod_proxy_ajp module in the Apache HTTP Server 2.2.12 through 2.2.21 places a worker node into an error state upon detection of a long request-processing time, which allows remote attackers to cause a denial of service (worker consumption) via an expensive request.
Publish Date : 2012-11-30 Last Update Date : 2017-09-18
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- CVSS Scores & Vulnerability Types

CVSS Score
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Low (Specialized access conditions or extenuating circumstances do not exist. Very little knowledge or skill is required to exploit. )
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 399

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat low
AV:N/AC:H/Au:N/C:N/I:N/A:P 2012-10-11 2012-01-04
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- Related OVAL Definitions

Title Definition Id Class Family
DEPRECATED: ELSA-2013-0512 -- httpd security, bug fix, and enhancement update (low) oval:org.mitre.oval:def:27395 unix
DSA-2579-1 apache2 - several oval:org.mitre.oval:def:18468 unix
ELSA-2013:0512: httpd security, bug fix, and enhancement update (Low) oval:org.mitre.oval:def:23943 unix
HP-UX Apache Running Tomcat Servlet Engine, Remote Denial of Service (DoS), Cross Site Scripting (XSS) oval:org.mitre.oval:def:19284 unix
HP-UX Running Apache, Remote Denial of Service (DoS), Execution of Arbitrary Code and other vulnerabilities oval:org.mitre.oval:def:18938 unix
RHSA-2013:0512: httpd security, bug fix, and enhancement update (Low) oval:com.redhat.rhsa:def:20130512 unix
RHSA-2013:0512: httpd security, bug fix, and enhancement update (Low) oval:org.mitre.oval:def:21066 unix
SUSE-SU-2013:0389-1 -- Security update for Apache oval:org.mitre.oval:def:25561 unix
SUSE-SU-2013:0469-1 -- Security update for apache2 oval:org.mitre.oval:def:26047 unix
SUSE-SU-2013:0830-1 -- Security update for Apache oval:org.mitre.oval:def:25484 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2012-4557

# Product Type Vendor Product Version Update Edition Language
1 Application Apache Http Server 2.2.12 Version Details Vulnerabilities
2 Application Apache Http Server 2.2.13 Version Details Vulnerabilities
3 Application Apache Http Server 2.2.14 Version Details Vulnerabilities
4 Application Apache Http Server 2.2.15 Version Details Vulnerabilities
5 Application Apache Http Server 2.2.16 Version Details Vulnerabilities
6 Application Apache Http Server 2.2.17 Version Details Vulnerabilities
7 Application Apache Http Server 2.2.18 Version Details Vulnerabilities
8 Application Apache Http Server 2.2.19 Version Details Vulnerabilities
9 Application Apache Http Server 2.2.20 Version Details Vulnerabilities
10 Application Apache Http Server 2.2.21 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apache Http Server 10

- References For CVE-2012-4557
SUSE openSUSE-SU-2013:0248
SUSE openSUSE-SU-2013:0243

- Metasploit Modules Related To CVE-2012-4557

There are not any metasploit modules related to this CVE entry (Please visit for more information)

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